diff --git a/Data_Structure/pom.xml b/Data_Structure/pom.xml
index d43f076..f905181 100644
--- a/Data_Structure/pom.xml
+++ b/Data_Structure/pom.xml
@@ -289,7 +289,7 @@
       <dependency>
           <groupId>io.netty</groupId>
           <artifactId>netty-all</artifactId>
-          <version>4.1.33.Final</version>
+          <version>4.1.42.Final</version>
       </dependency>
 
       <dependency>